gecko-dev/xulrunner/app/nsXULRunnerApp.cpp

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2012-05-21 11:12:37 +00:00
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsXULAppAPI.h"
#include "nsXPCOMGlue.h"
#include <stdio.h>
#include <stdlib.h>
#ifdef XP_WIN
#include <windows.h>
#define snprintf _snprintf
#define strcasecmp _stricmp
#endif
#include "nsAppRunner.h"
#include "nsIFile.h"
#include "nsCOMPtr.h"
#include "nsMemory.h"
#include "nsCRTGlue.h"
#include "nsStringAPI.h"
#include "nsServiceManagerUtils.h"
#include "plstr.h"
#include "prprf.h"
#include "prenv.h"
#include "nsINIParser.h"
#ifdef XP_WIN
#include "nsWindowsWMain.cpp"
#endif
#include "BinaryPath.h"
#include "nsXPCOMPrivate.h" // for MAXPATHLEN and XPCOM_DLL
using namespace mozilla;
/**
* Output a string to the user. This method is really only meant to be used to
* output last-ditch error messages designed for developers NOT END USERS.
*
* @param isError
* Pass true to indicate severe errors.
* @param fmt
* printf-style format string followed by arguments.
*/
static void Output(bool isError, const char *fmt, ... )
{
va_list ap;
va_start(ap, fmt);
#if (defined(XP_WIN) && !MOZ_WINCONSOLE)
char16_t msg[2048];
_vsnwprintf(msg, sizeof(msg)/sizeof(msg[0]), NS_ConvertUTF8toUTF16(fmt).get(), ap);
UINT flags = MB_OK;
if (isError)
flags |= MB_ICONERROR;
else
flags |= MB_ICONINFORMATION;
MessageBoxW(nullptr, msg, L"XULRunner", flags);
#else
vfprintf(stderr, fmt, ap);
#endif
va_end(ap);
}
/**
* Return true if |arg| matches the given argument name.
*/
static bool IsArg(const char* arg, const char* s)
{
if (*arg == '-')
{
if (*++arg == '-')
++arg;
return !strcasecmp(arg, s);
}
#if defined(XP_WIN)
if (*arg == '/')
return !strcasecmp(++arg, s);
#endif
return false;
}
static nsresult
GetGREVersion(const char *argv0,
nsACString *aMilestone,
nsACString *aVersion)
{
if (aMilestone)
aMilestone->AssignLiteral("<Error>");
if (aVersion)
aVersion->AssignLiteral("<Error>");
nsCOMPtr<nsIFile> iniFile;
nsresult rv = BinaryPath::GetFile(argv0, getter_AddRefs(iniFile));
if (NS_FAILED(rv))
return rv;
iniFile->SetNativeLeafName(NS_LITERAL_CSTRING("platform.ini"));
nsINIParser parser;
rv = parser.Init(iniFile);
if (NS_FAILED(rv))
return rv;
if (aMilestone) {
rv = parser.GetString("Build", "Milestone", *aMilestone);
if (NS_FAILED(rv))
return rv;
}
if (aVersion) {
rv = parser.GetString("Build", "BuildID", *aVersion);
if (NS_FAILED(rv))
return rv;
}
return NS_OK;
}
/**
* A helper class which calls NS_LogInit/NS_LogTerm in its scope.
*/
class ScopedLogging
{
public:
ScopedLogging() { NS_LogInit(); }
~ScopedLogging() { NS_LogTerm(); }
};
static void Usage(const char *argv0)
{
nsAutoCString milestone;
GetGREVersion(argv0, &milestone, nullptr);
// display additional information (XXX make localizable?)
Output(false,
"Mozilla XULRunner %s\n\n"
"Usage: " XULRUNNER_PROGNAME " [OPTIONS]\n"
" " XULRUNNER_PROGNAME " APP-FILE [APP-OPTIONS...]\n"
"\n"
"OPTIONS\n"
" --app specify APP-FILE (optional)\n"
" -h, --help show this message\n"
" -v, --version show version\n"
" --gre-version print the GRE version string on stdout\n"
"\n"
"APP-FILE\n"
" Application initialization file.\n"
"\n"
"APP-OPTIONS\n"
" Application specific options.\n",
milestone.get());
}
XRE_GetFileFromPathType XRE_GetFileFromPath;
XRE_CreateAppDataType XRE_CreateAppData;
XRE_FreeAppDataType XRE_FreeAppData;
XRE_mainType XRE_main;
static const nsDynamicFunctionLoad kXULFuncs[] = {
{ "XRE_GetFileFromPath", (NSFuncPtr*) &XRE_GetFileFromPath },
{ "XRE_CreateAppData", (NSFuncPtr*) &XRE_CreateAppData },
{ "XRE_FreeAppData", (NSFuncPtr*) &XRE_FreeAppData },
{ "XRE_main", (NSFuncPtr*) &XRE_main },
{ nullptr, nullptr }
};
class AutoAppData
{
public:
AutoAppData(nsIFile* aINIFile) : mAppData(nullptr) {
nsresult rv = XRE_CreateAppData(aINIFile, &mAppData);
if (NS_FAILED(rv))
mAppData = nullptr;
}
~AutoAppData() {
if (mAppData)
XRE_FreeAppData(mAppData);
}
operator nsXREAppData*() const { return mAppData; }
nsXREAppData* operator -> () const { return mAppData; }
private:
nsXREAppData* mAppData;
};
int main(int argc, char* argv[])
{
char exePath[MAXPATHLEN];
nsresult rv = mozilla::BinaryPath::Get(argv[0], exePath);
if (NS_FAILED(rv)) {
Output(true, "Couldn't calculate the application directory.\n");
return 255;
}
char *lastSlash = strrchr(exePath, XPCOM_FILE_PATH_SEPARATOR[0]);
if (!lastSlash || (size_t(lastSlash - exePath) > MAXPATHLEN - sizeof(XPCOM_DLL) - 1))
return 255;
strcpy(++lastSlash, XPCOM_DLL);
rv = XPCOMGlueStartup(exePath);
if (NS_FAILED(rv)) {
Output(true, "Couldn't load XPCOM.\n");
return 255;
}
ScopedLogging log;
if (argc > 1 && (IsArg(argv[1], "h") ||
IsArg(argv[1], "help") ||
IsArg(argv[1], "?")))
{
Usage(argv[0]);
return 0;
}
if (argc == 2 && (IsArg(argv[1], "v") || IsArg(argv[1], "version")))
{
nsAutoCString milestone;
nsAutoCString version;
GetGREVersion(argv[0], &milestone, &version);
Output(false, "Mozilla XULRunner %s - %s\n",
milestone.get(), version.get());
return 0;
}
rv = XPCOMGlueLoadXULFunctions(kXULFuncs);
if (NS_FAILED(rv)) {
Output(true, "Couldn't load XRE functions.\n");
return 255;
}
if (argc > 1) {
nsAutoCString milestone;
rv = GetGREVersion(argv[0], &milestone, nullptr);
if (NS_FAILED(rv))
return 2;
if (IsArg(argv[1], "gre-version")) {
if (argc != 2) {
Usage(argv[0]);
return 1;
}
printf("%s\n", milestone.get());
return 0;
}
if (IsArg(argv[1], "install-app")) {
Output(true, "--install-app support has been removed. Use 'python install-app.py' instead.\n");
return 1;
}
}
const char *appDataFile = getenv("XUL_APP_FILE");
if (!(appDataFile && *appDataFile)) {
if (argc < 2) {
Usage(argv[0]);
return 1;
}
if (IsArg(argv[1], "app")) {
if (argc == 2) {
Usage(argv[0]);
return 1;
}
argv[1] = argv[0];
++argv;
--argc;
}
appDataFile = argv[1];
argv[1] = argv[0];
++argv;
--argc;
static char kAppEnv[MAXPATHLEN];
snprintf(kAppEnv, MAXPATHLEN, "XUL_APP_FILE=%s", appDataFile);
putenv(kAppEnv);
}
nsCOMPtr<nsIFile> appDataLF;
rv = XRE_GetFileFromPath(appDataFile, getter_AddRefs(appDataLF));
if (NS_FAILED(rv)) {
Output(true, "Error: unrecognized application.ini path.\n");
return 2;
}
AutoAppData appData(appDataLF);
if (!appData) {
Output(true, "Error: couldn't parse application.ini.\n");
return 2;
}
return XRE_main(argc, argv, appData, 0);
}